Question

A Web music store offers two versions of a popular song. The size of the standard version is 2.3 megabytes (MB). The size of the high-quality version is 4.1 MB. Yesterday, there were 1310 downloads of the song, for a total download size of 4597 MB. How many downloads of the standard version were there?

Answer 1

2.3x+4.1(1310-x)=4597
Solve for x
2.3x+5,371-4.1x=4597
2.3x-4.1x=4597-5371
−1.8x=−774
X=-774/-1.8
X=430 standard version